I was excited by all the colors this multi-pen system offers, so i made the
investment and bought a 5 body and a 3 body and all the inks, in 0.38 and 0.5 to
go with it. Now that i have had the pens for a month now, it seems that the inks
run out fast because of the small size of the ink. (customer service told me
this when i emailed to ask if this was normal) I wished i had known this before
i chose this product. I am still excited by the colors and will continue to use
the pens.